code: def holder_table(x0, x1):
      return -abs(
          sin(x0) * cos(x1) * exp(abs(1 - sqrt(x0 * x0 + x1 * x1) / pi))
      )
  
file_path: dlib/tools/python/test/test_global_optimization.py
imports: from dlib import find_max_global, find_min_global
  import dlib
  from pytest import raises
  from math import sin, cos, pi, exp, sqrt, pow
label_desc: Use image node_id 5 for calling a global function with example usage: holder_table(x0, x1) and returns: unknown